Controlling agent for fabric pest insects

Abstract

A controlling agent for fabric pest insects characterized by containing, as an active ingredient, a carboxylic acid ester represented by the formula (I): <IMAGE> (I) wherein R represents an allyl or propargyl group, Y represents a hydrogen atom or a methyl group, and when Y is a hydrogen atom, X represents an isobutenyl, 2,2-difluorovinyl or 2-chloro-2-fluorovinyl group, and when Y is a methyl group, X represents a methyl group.

What is claimed is: 
     
       1. A method for controlling fabric pest insects comprising applying a controlling agent which comprises an insecticidally effective amount of a carboxylic acid ester represented by the formula (I): ##STR7## wherein R represents an allyl or propargyl group, Y is a hydrogen atom when X represents an isobutenyl, 2,2-difluorovinyl or 2-chloro-2-fluorovinyl group, and Y is a methyl group when X represents a methyl group, and an inert carrier to a locus where the insects inhabit. 
     
     
       2. A method according to claim 1, wherein the fabric pest insects are selected from the group consisting of Tinea, Tineola, Attagenus, Anthrenus, Hofmannophila, Endrosis and Dermestes. 
     
     
       3. A method according to claim 1, wherein the fabric pest insects are selected from the group consisting of Tinea translucens, Tineola bisselliella and Attagenus unicolor. 
     
     
       4. A method according to claims 1, 2 or 3, wherein the carboxylic acid ester is selected from the group consisting of: (S)-2-Methyl-4-methylidene-3-(2-propynyl)cyclopent-2-enyl 2,2,3,3-tetramethylcyclopropanecarboxylate   (S)-2-Methyl-4-methylidene-3-(2-propynyl)cyclopent-2-enyl (1R)-cis,trans-chrysanthemate   (RS)-2-Methyl-4-methylidene-3-(2-propenyl)cyclopent-2-enyl 2,2,3,3-tetramethylcyclopropanecarboxylate   (RS)-2-Methyl-4-methylidene-3-(2-propenyl)cyclopent-2-enyl (1R)-cis,trans-chrysanthemate   (S)-2-Methyl-4-methylidene-3-(2-propynyl)cyclopent-2-enyl (1RS)-trans-3-(2,2-difluorovinyl)-2,2-dimethylcyclopropanecarboxylate   (S)-2-Methyl-4-methylidene-3-(2-propynyl)cyclopent-2-enyl (1R)-trans-3-(2-chloro-2-fluorovinyl)-2,2-dimethylcyclopropanecarboxylate   (RS)-2-Methyl-4-methylidene-3-(2-propenyl)cyclopent-2-enyl (1RS)-trans-3-(2,2-difluorovinyl)-2,2-dimethylcyclopropanecarboxylate   (RS)-2-Methyl-4-methylidene-3-(2-propenyl)cyclopent-2-enyl (1R)-trans-3-(2-chloro-2-fluorovinyl)-2,2-dimethylcyclopropanecarboxylate.   
     
     
       5. A method according to claims 1, 2 or 3, wherein the carboxylic acid ester is (S)-2-methyl-4-methylidene-3-(2-propynyl)cyclopent-2-enyl 2,2,3,3-tetramethylcyclopropanecarboxylate. 
     
     
       6. A method according to claim 1, wherein the carboxylic acid ester is contained in an amount ranging from 0.01 to 80% by weight in the controlling agent. 
     
     
       7. A method according to claim 1, wherein the carboxylic acid ester is contained in an amount ranging from 0.1 to 65% by weight in the controlling agent. 
     
     
       8. A method according to claim 1, wherein the controlling agent is applied in an amount of 10 mg to 100 g/m 2  of the active ingredient. 
     
     
       9. A method according to claim 1, wherein the controlling agent is applied by volatilizing. 
     
     
       10. A method according to claim 1, wherein the controlling agent is applied by volatilizing at room temperature. 
     
     
       11. A method for protecting fabric from fabric pest insects which comprises subjecting fabric to a carboxylic acid ester represented by the formula (I): ##STR8## wherein R represents an allyl or propargyl group, Y is a hydrogen atom when X represents an isobutenyl, 2,2-difluorovinyl, or 2-chloro-2-fluorovinyl group, and Y is a methyl group when X represents a methyl group. 
     
     
       12. A method according to claim 11, wherein the step of subjecting includes volatization of the carboxylic acid ester. 
     
     
       13. A method according to claim 12, wherein the volatization is effected at room temperature. 
     
     
       14. A method according to claims 12 or 13, wherein the volatization is effected from a sheet-like substance wherein the carboxylic acid ester is fixed. 
     
     
       15. A method according to claim 14, wherein the sheet-like substance is one member selected from the group consisting of synthetic resin sheets, animal, vegetable or inorganic fiber sheets, blended sheets or cloths made of mixtures of synthetic resins and inorganic fibers or powders, blended cloths or non-woven cloths made of synthetic resins and animal or vegetable fibers, and laminated sheets thereof. 
     
     
       16. A method according to claims 12 or 13, wherein the volatization is effected from materials for furniture storing clothing and clothes wherein the carboxylic acid ester is fixed.